/*
 * Copyright 2009-2020 Tilmann Zaeschke
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.zoodb.internal.server.index;

import org.zoodb.internal.server.IOResourceProvider;


/**
 * Abstract base class for indices.
 * 
 * @author Tilmann Zaeschke
 */
abstract class AbstractIndex {

	protected final IOResourceProvider file;
	private boolean isDirty;
	private final boolean isUnique; 
	
	public AbstractIndex(IOResourceProvider file, boolean isNew, boolean isUnique) {
		this.file = file;
		this.isDirty = isNew;
		this.isUnique = isUnique;
	}
	
    public final boolean isDirty() {
        return isDirty;
    }
    
    protected final boolean isUnique() {
        return isUnique;
    }
    
	protected final void markDirty() {
		isDirty = true;
	}
	
	protected final void markClean() {
		isDirty = false;
	}
	
	public final IOResourceProvider getIO() {
		return file;
	}
}
